diff --git a/mk/px4_targets.mk b/mk/px4_targets.mk
index a88930006d..2c15d757a8 100644
--- a/mk/px4_targets.mk
+++ b/mk/px4_targets.mk
@@ -7,7 +7,7 @@ HAL_PX4_DIR = $(realpath $(MK_DIR)/../libraries/AP_HAL_PX4)
 PX4_EXTERNAL_SCRIPTS = $(HAL_PX4_DIR)/scripts/rc.APM~init.d/rc.APM
 
 PX4_EXTERNAL = EXTERNAL_APPS=$(PWD) EXTERNAL_SCRIPTS=$(PX4_EXTERNAL_SCRIPTS)
-PX4_MAKE = make -C $(PX4_ROOT) $(PX4_EXTERNAL)
+PX4_MAKE = make -C $(PX4_ROOT) $(PX4_EXTERNAL) CONFIG_APM=y
 
 
 px4: